Hello all. I upgraded from 11.10 to 12.04 & now my wired internet keeps disconnecting & reconnecting.
I am dual booted with Win7 Ultimate & I do not get that problem in Windows. I decided to give the upgrade a try & everything went as normal just like my previous upgrades. When the upgrade was finished, I booted into Ubuntu & everything ran smoothly, for about two minutes. Then the internet disconnected (Wired Network disconnected - you are now offline). It stayed like that for about 3 seconds then reconnected (Wired Connection 1 - Connection Established). It stayed reconnected for 43 seconds, then disconnects for 3 seconds & the whole thing starts over until I go back to Windows.
I am hoping somebody else got this problem & solved it. I will also take the OP's advice & run a new version live first to test it out in the future.
Thanks in advance,